Setting up Yahoo! Mail

Step 1) Configure Yahoo

Prior to setting up your Yahoo account(s) in Postbox, go to Account Security option of your Yahoo Account.

If you have two-step verification turned ON

You must generate an app password. 

  1. Click on Generate or Manage App Passwords.
  2. Under the Select Your App pulldown, select Other App.
  3. Enter Postbox in the text field.
  4. Click the Generate button.
  5. Copy the password, you'll need this password later when you set the account up in Postbox.

If you have two-step verification turned OFF

You must enable the Allow apps that use less secure sign in option.

Step 2) Configure Postbox

  1. In Postbox, go the Privacy panel.
    (Mac) Preferences > Privacy
    (Windows) Options > Privacy
  2. Click on Saved Passwords, and make sure that a password for this account does not currently exist. If it does, delete it.
  3. Go to File > New > Mail Account.
  4. Enter your full name in the Your Name field.
  5. Enter your Yahoo! email address ( in the Email Address field.
  6. Enter a description in the Description field (can be anything).
  7. Enter your Yahoo account password in the Password field.
  8. Click Continue and Postbox will pull in your settings.
    If your address is, only enter joeblow.
    If your address is, enter
  9. Click OK.
  10. Click on your newly created Yahoo! account in the folder pane, and then click the Get Mail button in the toolbar.

That should be it! Enjoy!

Yahoo IMAP Settings

Incoming Mail (IMAP) Server

  • Server:
  • Port: 993
  • Requires SSL: Yes
  • Username:
    • if your address is, only enter joeblow
    • if your address is, enter

Outgoing Mail (SMTP) Server

  • Server:
  • Port: 465 or 587
  • Requires SSL: Yes
  • Requires authentication: Yes